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CHEMICAL-PROTECTIVE SET
MOPP Level-1

Basic Military Requirements (BMR) Revised Edition
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partially penetrated by all but the smallest droplets of liquid agents, especially in relatively high winds. Moreover, the impregnated/protective clothing is not equally efficient in neutralizing all liquid CW agents. On the other hand, wet-weather clothing is resistant to all liquid CW agents for a limited amount of time, provided that the closures at the neck, wrists, and protective mask are well adjusted or taped. Wet-weather  clothing  provides  a  measure  of protection against CBR contaminants when worn over ordinary  clothing;  but  it  provides  the  most  complete protection when worn over impregnated or protective clothing.  Gradual  penetration  of  the  synthetic  rubber layer of the wet-weather clothing will eventually occur unless CW agent contaminants are promptly removed. The  contaminants  are  removed  by  frequent  and thorough  flushing  of  the  surface  with  a  seawater washdown or an equivalent, such as jury-rigged topside seawater  showers,  or  by  swabbing  with  liquid hypochlorite. In  warm  weather  or  during  periods  of  increased physical  activity,  wet-weather  clothing  has  a  major disadvantage  in  that  it  can  only  be  tolerated  for relatively  short  periods  of  time.  Tolerance  is  limited because no air can pass through the clothing to cool the wearer’s body by the evaporation of perspiration. Perspiration  is  normally  accumulated  inside  an impermeable  suit.  Underclothing,  gloves,  socks,  and shoes may become saturated. Sweating can be reduced and tolerance times lengthened by reducing the exercise rate,  by  using  water-spray  cooling,  and  by  reducing exposure to direct sunlight. Ordinary Work Clothing Special  protective  clothing  is  not  required  for  all personnel. Ordinarily, only the personnel of monitoring and decontamination teams who must work in or near hazardous  areas  wear  it.  All  other  personnel  working near  these  areas  should  wear  two  layers  of  ordinary clothing,  which  provide  partial  protection  against agents and radioactive particles. REVIEW 5 QUESTIONS Q1.   True or false. Eating food after a CBR attack is okay as long as the food was in a sealed container before the attack. Q2.   Aboard  ship,  the  safest  place  to  be  during  a nuclear attack is ____________________. Q3.   What  are  the  two  functions  of  an  MCU-2/P mask? a. b. Q4.   How long should it take you to don and adjust an MCU-2/P mask? Q5.   List the types of clothing that are useful for CBR defense. a. b. MISSION ORIENTED PROTECTIVE POSTURE (MOPP) Learning Objective: When you finish this chapter, you will be able to— Recall the procedures for protection at each level of mission oriented protective posture (MOPP). Mission  oriented  protective  posture  (MOPP)  is  a means  of  establishing  levels  of  readiness.  MOPP  is  a flexible system of protection against chemical agents 13-21 Student Notes:







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